2a. He did wake up this morning. 2b. He did look in the mirror. 2c. He did notice his …
When will he wake [up]?...it seems clear to me up is present more often than not when …
In your sentences, on is the correct preposition and in is the incorrect one. This is a bit …
7. To expand one of the comments, you would use "in April" because the day when you will …
Never use "I'm John Smith" when you introduce yourself; instead, use "My name …
更多内容请点击：Using "Did" should it be followed by past or present tense verb?